For the chronology before the year ho of the Flight Wagidi did his best, but here, the material being defective, many of his conclusions are precarious.
In any case, however, the migration of these plants to the Alps must for the most part have taken place via the Arctic. The possibility of any extensive east to west migration having taken place direct from the Altai to the Alps seems excluded by the fact that 50 o ho of the arctico-altaic alpine plants are absent from the Caucasus.
The descriptions of South American scenery in Westward Ho!, of the Egyptian desert in Hypatia, of the North Devon scenery in Two Years Ago, are among the most brilliant pieces of wordpainting in English prose-writing; and the American scenery is even more vividly and more truthfully described when he had seen it only by the eye of his imagination than in his work At Last, which was written after he had visited the tropics.
Have woken up this morning feeling completely naff again, hey ho.
If a hollow sphere 7 of which the outer radius is R and the inner radius r is placed in a uniform field Ho, the field inside will also be uniform and in the same direction as Ho, and its value will be approximately 3 i - R 3 For a cylinder placed with its axis at right angles to the lines of force, 2 = Ho (41) 2 +4(-2)(i - R2) These expressions show that the thicker the screen and the greater its permeability o, the more effectual will be the shielding action.
